<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<script>
			document.title="屏幕换色";
			alert(document.lastModified);
			alert(document.URL);
			alert(document.referrer);
			function changeCol(){
				document.body.bgColor="#008000";
			}
		</script>
	</head>
	<body onload="changeCol()">
	</body>
</html>
